#
# SQUID CONFIGURATION
#
# Listen on Port
http_port 3128
# Visible Hostname in Error Messages
visible_hostname proxy
# Hide Source IP Address
forwarded_for off
# Error Messages in German
error_directory /usr/share/squid3/errors/French/
# Cache Manager E-Mail address
cache_mgr [email protected]

#
# Caching Options
#
# Minimum Object Size: 0!
minimum_object_size 0 KB
# The bigger the objects will be, slower will be the answers: 10MB
maximum_object_size 10 MB
# Lowest limit for Cache (in %)
cache_swap_low 90
# Highest Limit for Cache (in %)
cache_swap_high 98
# Max Cache capacity in Memory (RAM)
cache_mem 1 GB
# The highest size of Objects retains in RAM
maximum_object_size_in_memory 1 MB

#
# Connections Options
#
# Eject clients with unclean closed connections
half_closed_clients off
# Reject Persistent Server Connections
server_persistent_connections off
# Accept Persistent Client Connections
client_persistent_connections on
client_lifetime 1 day
# Connecting Timeouts for Connections
connect_timeout 50 seconds
request_timeout 50 seconds
persistent_request_timeout 50 seconds
read_timeout 2 minutes
# Aborting Downloads
quick_abort_min 20 KB
quick_abort_max 20 KB
# In Percentage
quick_abort_pct 90

#
# DNS Options
#
# Upper limit on how long Squid will cache positive DNS responses.
positive_dns_ttl 6 hours
# Default Time-to-Live (TTL) for failed requests.
negative_dns_ttl 2 minutes

#
# Refresh Patterns
#
# Add any of your own refresh_pattern entries above these.
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern (Release|Packages(.gz)*)$ 0 20% 2880
refresh_pattern . 0 20% 4320

#
# LDAP & Kerberos (Active Directory) Authentication
#

### negotiate kerberos and ntlm authentication
auth_param negotiate program /usr/local/bin/negotiate_wrapper -d --ntlm /usr/bin/ntlm_auth --diagnostics --helper-protocol=squid-2.5-ntlmssp --domain=LELOUP --kerberos /usr/local/bin/squid_kerb_auth -d -s GSS_C_NO_NAME
auth_param negotiate children 10
auth_param negotiate keep_alive off

### pure ntlm authentication
auth_param ntlm program /usr/bin/ntlm_auth --diagnostics --helper-protocol=squid-2.5-ntlmssp --domain=LELOUP
auth_param ntlm children 10
auth_param ntlm keep_alive off

### provide basic authentication via ldap for clients not authenticated via kerberos/ntlm
auth_param basic program /usr/lib/squid3/basic_ldap_auth -R -b "dc=leloup,dc=local" -D [email protected] -W /etc/squid3/ldappass.txt -f sAMAccountName=%s -h ad.leloup.local
auth_param basic children 10
auth_param basic realm Internet Proxy
auth_param basic credentialsttl 1 minute

#
# ACL Definitions
#
acl auth proxy_auth REQUIRED
acl SSL_ports port 443
acl Safe_ports port 80		# http
acl Safe_ports port 21		# ftp
acl Safe_ports port 443		# https
acl Safe_ports port 70		# gopher
acl Safe_ports port 210		# wais
acl Safe_ports port 1025-65535	# unregistered ports
acl Safe_ports port 280		# http-mgmt
acl Safe_ports port 488		# gss-http
acl Safe_ports port 591		# filemaker
acl Safe_ports port 777		# multiling http
acl CONNECT method CONNECT



#
# http_access Rules
#
### enforce authentication
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports

http_access deny !auth
http_access allow auth
http_access allow localhost